Nowhere-Zero 4-Flows, Simultaneous Edge-Colorings, And Critical Partial Latin Squares

Rong Luo, Wenan Zang, Cun-Quan Zhang. Nowhere-Zero 4-Flows, Simultaneous Edge-Colorings, And Critical Partial Latin Squares. Combinatorica, 24(4):641-657, 2004. [doi]

Abstract

Abstract is missing.